A common occurence involving drunk young adults, when a young man exposes his testicles which are then attacked by common house pets. It can also refer to an angry women who bites off the testicles of her male partner. Most men die from this.

Dude, my parrot did a total sak attack on me last night, I was so wasted!
Or
Hey did u hear bout dat girl that's in jail? She pulled a sak attack on her man and he died!